EP2612690A1 - Drain et endoscope comportant un drain - Google Patents

Drain et endoscope comportant un drain Download PDF

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Publication number
EP2612690A1
EP2612690A1 EP11821368.5A EP11821368A EP2612690A1 EP 2612690 A1 EP2612690 A1 EP 2612690A1 EP 11821368 A EP11821368 A EP 11821368A EP 2612690 A1 EP2612690 A1 EP 2612690A1
Authority
EP
European Patent Office
Prior art keywords
endoscope
end side
drainage tube
tube
insertion portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11821368.5A
Other languages
German (de)
English (en)
Other versions
EP2612690A4 (fr
Inventor
Koji Itoh
Masayuki Iwasaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
Original Assignee
Fujifilm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Publication of EP2612690A1 publication Critical patent/EP2612690A1/fr
Publication of EP2612690A4 publication Critical patent/EP2612690A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A61B1/0014—Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion

Definitions

  • the present invention relates to a drainage tube and a drainage tube-including endoscope inserted into a bile duct or pancreatic duct opened to the duodenum.
  • pancreatic drainage tube inserted into the pancreatic duct for drainage has been proposed (see Patent Literature 1).
  • body fluid in the pancreatic duct can be drained to the duodenum.
  • Patent Literature 1 JP-A-2002-17868
  • the drainage tube becomes an obstacle to insertion of the endoscope into the bile duct or pancreatic duct.
  • an object of the invention is to provide a drainage tube and a drainage tube-including endoscope in which the drainage tube can be indwelled in a bile duct or pancreatic duct easily without forcing a patient to bear an excessive strain.
  • the invention has the following configuration.
  • the drainage tube can be indwelled in a bile duct or pancreatic duct easily without forcing a patient to bear an excessive strain.
  • Fig. 1 is a view showing the external appearance of a drainage tube-including endoscope for the purpose of explaining an embodiment of the invention.
  • a drainage tube-including endoscope 100 has a main unit operation portion 13, and an endoscope insertion portion 15 which is provided so as to be consecutive to the main unit operation portion 13 and which is inserted into a body cavity (especially, into a bile duct or pancreatic duct).
  • a universal cord 17 including various conduit lines and signal cables is connected to the main unit operation portion 13.
  • a connector which can be detachably connected to a controller not shown is attached to a front end of the universal cord 17. Light emitted from a light source portion of the controller is fed to the drainage tube-including endoscope 100 through the connector and the universal cord 17 and guided as illumination light to an illumination optical system provided in an endoscope front end portion 19 of the endoscope insertion portion 15.
  • Fig. 2 is an enlarged perspective view of the endoscope front end portion 19 shown in Fig. 1 .
  • An image pickup optical system 23 provided in the endoscope front end portion 19 has a not-shown image pickup device for picking up an image of an observation region illuminated by the illumination optical system 21.
  • An image pickup signal of an observation image obtained from the image pickup device is outputted to the controller.
  • a processor portion of the controller displays image information of the image-processed input image pickup signal on a not-shown display portion. In the series of processes, an instruction can be inputted from a keyboard or the like connected to the controller.
  • a CCD image sensor or a CMOS image sensor is used as the image pickup device of the image pickup optical system 23.
  • the main unit operation portion 13 has various buttons 27 such as an air feed/water feed button, a suction button, a shutter button, and a function changeover button which are provided side by side, and an angle knob 31 operated to curve a curvature portion 29 provided on a front end side of the endoscope insertion portion 15.
  • buttons 27 such as an air feed/water feed button, a suction button, a shutter button, and a function changeover button which are provided side by side, and an angle knob 31 operated to curve a curvature portion 29 provided on a front end side of the endoscope insertion portion 15.
  • the endoscope insertion portion 15 has a soft portion 33, the curvature portion 29 and the endoscope front end portion 19 arranged in order viewed from the main unit operation portion 13 side.
  • the soft portion 33 has flexibility and is provided so as to be consecutive to a base end side of the curvature portion 29.
  • the curvature portion 29 is curved in such a manner that the angle knob 31 of the main unit operation portion 13 is operated and turned to pull a wire 35 which is provided so as to be inserted into the endoscope insertion portion 15. In this manner, the endoscope front end portion 19 can be turned to a desired direction.
  • a forceps insertion portion 41 in which a treatment tool such as forceps or a water feed device is inserted is provided in a connecting portion 37 between the main unit operation portion 13 and the endoscope insertion portion 15.
  • the treatment tool inserted from the forceps insertion portion 41 is led out of a forceps port 43 (see Fig. 2 ) of the endoscope front end portion 19.
  • a drainage tube 200 is fixed along the longitudinal direction of the endoscope insertion portion on the outer circumference of the endoscope front end portion 19 (to be inserted into a body cavity) of the drainage tube-including endoscope 100.
  • the drainage tube 200 can be made of a material such as polyethylene, fluorocarbon resin, silicone or polyurethane.
  • the drainage tube 200 may contain barium sulfate as a radiopaque component.
  • An attachment band 49 for example, made of an elastic material such as silicone rubber, is fixed to the drainage tube 200.
  • the attachment band 49 is fastened to the outer circumference of the endoscope front end portion 19 by elastic force.
  • the drainage tube 200 is detachably fixed to the endoscope front end portion 19. Because the drainage tube 200 is provided detachably, the drainage tube 200 can be afterward attached to an existing endoscope, and the drainage tube 200 can be exchanged for a new drainage tube 200 or a drainage tube 200 with a different length.
  • the attachment band 49 may be fixed to the outer circumference of the endoscope front end portion 19 by an adhesive agent. In this case, the drainage tube 200 can be exchanged after the attachment band 49 is cut off.
  • Fig. 3 is a side view schematically showing the drainage tube.
  • the drainage tube 200 has: a front end side tube region 51 which has a length L1, which is fixed to the outer circumference of the endoscope front end portion 19 and which has radial elasticity (elastic constant) so as not to collapse at the time of insertion into a duodenal papilla; and a rear end side tube region 53 which is provided so as to be consecutive to the front end side tube region 51, which has a length L2 (L1 ⁇ L2) of an extension length so as to be separate from the endoscope front end portion 19 and which has lower radial elasticity than that of the front end side tube region 51.
  • Fig. 4 is an enlarged perspective view of the front end side tube region 51.
  • the front end side of the tube is cut obliquely.
  • a tube tip 55 which is an obliquely cut tip portion is disposed on the outer circumferential side of the endoscope front end portion 19.
  • a front inclined surface 57 is provided as an inclined surface which gradually comes closer to the outer circumferential surface of the endoscope front end portion 19 as the position goes toward the front in the tube axial direction (toward the endoscope front end side). Because the drainage tube 200 tapered off in this manner is unitedly fixed to the endoscope front end portion 19, easiness of insertion of the endoscope front end portion 19 into a body cavity is improved. Moreover, because the front end of the front end side tube region 51 can be provided as a large opening, the fluid flow volume in the tube can be gained.
  • the front end side tube region 51 and the rear end side tube region 53 are connected to each other by an interface inclined wit respect to the tube axial direction.
  • the rear end of the front end side tube region 51 has a rear inclined surface 61 which gradually comes closer to the outer circumference of the endoscope front end portion 19 as the position goes toward the rear.
  • An interface tip 59 which is a tip of the rear inclined surface 61 is disposed on the outer circumferential side of the endoscope front end portion 19.
  • the front end side tube region 51 is disposed along the endoscope front end portion 19 so that the interface tip 59 at the rear end of the front end side tube region is prevented from being pressed against the inner wall of the body cavity unexpectedly. Accordingly, the inner wall of the body cavity can be prevented from being damaged, so that easiness of extraction of the endoscope from the body cavity is improved.
  • Such a front end side tube region 51 having the front inclined surface 57 and the rear inclined surface 61 is made of a material having high elasticity.
  • the drainage tube 200 is formed in such a manner that the rear end side tube region 53 made of another material having lower elasticity than that of the front end side tube region 51 is connected to the front end side tube region 51 by two-color molding, welding, adhesive bonding, etc.
  • the drainage tube 200 may be formed as a double pipe structure in which a tube body serving as the front end side tube region 51 is inserted and fitted into the front end of the rear end side tube region 53.
  • the drainage tube 200 may be formed in such a manner that elasticity of only the front end side tube region 51 is increased by a curable resin of the same material whose curing is accelerated by light with a constant wavelength. That is, any structure and any production method may be used as long as the front end side tube region 51 can have higher elasticity than that of the rear end side tube region 53.
  • Fig. 5A is a side view in which the tube tip 55 of the front end side tube region 51 is disposed in the same position in the tube axial direction as a front end surface 63 of the endoscope front end portion 19.
  • Fig. 5B is a side view in which the tube tip 55 of the front end side tube region 51 protrudes outward from the front end surface 63 of the endoscope front end portion 19.
  • the tube tip 55 of the front end side tube region 51 can be disposed in the same position in the tube axial direction as the front end surface 63 of the endoscope front end portion 19 or so as to be backed from the front end surface 63 (see Fig. 2 ). Because the tube tip 55 is disposed on the same plane with the front end surface 63 of the endoscope front end portion 19 or so as to be backed from the front end surface 63, the drainage tube 200 is prevented from coming into sight so that an observation image having a wide angle of view can be obtained.
  • the tube tip 55 of the front end side tube region 51 can be disposed so as to protrude forward from the front end surface 63 of the endoscope front end portion 19. Because the tube tip 55 is disposed so as to protrude forward from the front end surface 63, the opening of the drainage tube 200 is prevented from abutting on the inner wall of the body cavity so that the bile can be discharged more smoothly without reduction in the discharged fluid flow volume. Accordingly, perfusion is apt to be formed so that the visual field of the endoscope can be kept quickly for sharp observation of the inside of the bile duct or pancreatic duct.
  • Fig. 6 is a sectional view of the endoscope front end portion 19 taken in a plane orthogonal to the axis.
  • the drainage tube-including endoscope 100 can be operated so that the curvature portion 29 of the endoscope insertion portion 15 is curved in only one direction by one wire 35.
  • the rear side of the paper plane in Fig. 6 shows a rear portion in the direction of insertion.
  • the endoscope front end portion 19 is turned to the upside of Fig. 6 by the curvature of the curvature portion 29. Accordingly, the endoscope front end portion 19 shown in Fig. 6 has its upside provided as the curvature inside, and its downside provided as the curvature outside.
  • the drainage tube 200 is disposed on the outside of the curved curvature portion 29 so that the drainage tube 200 does not obstruct the operation of curving the curvature portion 29 when the curvature portion 29 is operated to be curved. Moreover, the rear end side tube region 53 of the drainage tube 200 does not collapse in the radial direction of the tube due to the curvature of the curvature portion 29.
  • the rear end side tube region 53 may have a length led out of the body from the position of the endoscope front end portion 19 inserted into the body cavity.
  • the base end side of the drainage tube 200 can be led out of the body cavity, and a suction pump, a collection vessel or a syringe which is not shown can be connected to the end of the base end side of the drainage tube 200 in order to collect the bile or the like.
  • a suction pump, a collection vessel or a syringe, the bile or the like can be collected surely even when it cannot be discharged naturally by the long and narrow drainage tube 200.
  • the suction pump When a suction pump is used, it is preferable that the suction pump performs suction based on pulsation. That is, when suction is not performed under a constant negative pressure but suction pressure is changed cyclically, fluidity of fluid in the tube is improved. In this manner, efficiency in collection of the bile or the like can be improved.
  • Fig. 7 is a front view of the vicinity of the duodenum and a partly cutaway enlarged view of main part thereof.
  • Fig. 8 is an enlarged view of the endoscope front end portion 19 and the drainage tube 200 inserted into the bile duct 65 at the time of drainage.
  • the endoscope front end portion 19 is inserted up to the duodenum 73 located near the liver 67, the stomach 69 and the gallbladder 71.
  • the duodenum 73 the bile duct 65 and the pancreatic duct 66 are opened at the duodenal papilla 75.
  • the bile duct 65 and the pancreatic duct 66 merge into one common duct 64 connected to the duodenal papilla 75.
  • the curvature portion 29 is bent by operation of the angle knob 31, the endoscope front end portion 19 turned to the duodenal papilla 75 is inserted in the duodenal papilla 75.
  • the front end side tube region 51 is tapered off by the front inclined surface 57, so that insertion resistance can be reduced.
  • the endoscope front end portion 19 having passed through the duodenal papilla 75 is disposed in the bile duct 65 via the common duct 64.
  • the rear end side tube region 53 is led out to the duodenum 73 from the duodenal papilla 75.
  • a water feed device is inserted from the forceps insertion portion 41 provided in the connecting portion 37 of the drainage tube-including endoscope 100.
  • Transparent fluid (physiological salt solution) supplied by the water feed device is blown out from the forceps port 43 to the bile duct 65.
  • the blown-out transparent fluid is stirred with the bile, so that a mixed liquid 77 exhibiting a positive pressure in the bile duct 65 is led into the front end side tube region 51 of the drainage tube 200 fixed to the endoscope front end portion 19.
  • the mixed liquid 77 led in from the front end side tube region 51 is discharged from the rear end side tube region 53 to the duodenum 73.
  • the endoscope front end portion 19 is removed from the bile duct 65.
  • the front end side tube region 51 having high elasticity goes into the duodenal papilla 75 from the interface tip 59 side of the rear inclined surface 61, so that the duodenal papilla 75 is gradually enlarged to make it possible to reduce resistance at the time of removal.
  • the rear end side tube region 53 having low elasticity is deformed flexibly to pass through the duodenal papilla 75 without resistance.
  • the front end side tube region 51 of the drainage tube 200 has high elasticity in the radial direction, the front end side tube region 51 does not collapse at the time of insertion into the duodenal papilla 75 so that drainage for discharging liquid in the bile duct 65 or pancreatic duct 66 can be performed surely.
  • the elasticity of the rear end side tube region 53 is lower than that of the front end side tube region 51, the rear end side tube region 53 is deformed so easily as not to damage the inside of the body cavity at the time of removal.
  • the drainage tube 200 and the aforementioned drainage tube-including endoscope 100 can be indwelled in the bile duct 65 or pancreatic duct 66 easily without forcing the patient to bear an excessive strain. Moreover, it is not necessary to handle the drainage tube carefully and specially but the drainage tube can be inserted together with the endoscope insertion portion into the bile duct or pancreatic duct to form perfusion easily, so that the field of view can be kept quickly and smoothly.
  • a drainage tube can be indwelled in a bile duct or pancreatic duct easily without forcing a patient to bear an excessive strain.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Endoscopes (AREA)
  • Prostheses (AREA)
EP11821368.5A 2010-08-30 2011-04-19 Drain et endoscope comportant un drain Withdrawn EP2612690A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010192984A JP5637781B2 (ja) 2010-08-30 2010-08-30 ドレナージチューブ及びドレナージチューブ付内視鏡
PCT/JP2011/059646 WO2012029350A1 (fr) 2010-08-30 2011-04-19 Drain et endoscope comportant un drain

Publications (2)

Publication Number Publication Date
EP2612690A1 true EP2612690A1 (fr) 2013-07-10
EP2612690A4 EP2612690A4 (fr) 2017-07-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11821368.5A Withdrawn EP2612690A4 (fr) 2010-08-30 2011-04-19 Drain et endoscope comportant un drain

Country Status (4)

Country Link
EP (1) EP2612690A4 (fr)
JP (1) JP5637781B2 (fr)
CN (1) CN103096968B (fr)
WO (1) WO2012029350A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6244615B2 (ja) * 2012-08-01 2017-12-13 日本ゼオン株式会社 内視鏡用カテーテル及び内視鏡処置具
CN103223206A (zh) * 2013-04-03 2013-07-31 张润卯 一种具有内窥功能的体腔引流管
CN106073954A (zh) * 2016-06-14 2016-11-09 广州市番禺区中心医院 肝内外胆管体外互联装置
CN106859731B (zh) * 2017-02-08 2019-04-05 山东省立医院 一种上颌窦内窥镜
CN109498131B (zh) * 2019-01-17 2024-06-14 上海欧太医疗器械有限公司 可视化手术用组合件及相应内窥镜
CN109821135A (zh) * 2019-03-21 2019-05-31 上海伴诚医疗科技有限公司 一种可视可弯引流管及一种可视可定向控弯引流装置
CN110251804A (zh) * 2019-05-30 2019-09-20 威海柯西医疗科技有限公司 一种可视化引流导管

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132958A (en) * 1980-03-21 1981-10-17 Olympus Optical Co Absorbing tube
JPS63117768A (ja) * 1986-11-07 1988-05-21 クリエートメデック株式会社 リム−バブルフアネルカテ−テル
JPH02280766A (ja) * 1989-04-24 1990-11-16 Yoji Ito 医療用針，筒及び器具
JP3370606B2 (ja) * 1997-10-29 2003-01-27 ペンタックス株式会社 内視鏡用ドレナージチューブ留置具
JP4846893B2 (ja) 2000-06-30 2011-12-28 オリンパス株式会社 膵管用ドレナージチューブ
WO2006033671A2 (fr) * 2004-04-15 2006-03-30 Wilson-Cook Medical Inc. Dispositifs d'acces chirurgical endoscopiques et procede d'articulation d'un canal accessoire externe
CN2805807Y (zh) * 2005-04-08 2006-08-16 白文斌 多功能医用冲洗引流管
US20070239137A1 (en) * 2006-03-30 2007-10-11 Ethicon Endo-Surgery, Inc. Intubation device for colonic decompression
CN100586491C (zh) * 2007-02-16 2010-02-03 康春彬 一次性引流装置
DE102007008099B4 (de) * 2007-02-19 2021-05-20 Ingoscope Systems Gmbh Schlauchanordnung für ein Endoskop
JP2010148549A (ja) * 2008-12-24 2010-07-08 Fujifilm Corp 内視鏡システム及び内視鏡
JP5200981B2 (ja) 2009-02-16 2013-06-05 富士通株式会社 動き検出回路及びその動き検出回路を含む動画像符号化装置
JP5521195B2 (ja) * 2009-08-26 2014-06-11 国立大学法人大阪大学 内視鏡用挿入補助具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012029350A1 *

Also Published As

Publication number Publication date
CN103096968B (zh) 2015-04-15
JP5637781B2 (ja) 2014-12-10
EP2612690A4 (fr) 2017-07-12
JP2012045340A (ja) 2012-03-08
WO2012029350A1 (fr) 2012-03-08
CN103096968A (zh) 2013-05-08

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